Pinned statuses (#4675)

* Pinned statuses

* yarn manage:translations

app/javascript/mastodon/locales/ca.json

@@ -168,6 +168,7 @@
   "status.mention": "Esmentar @{name}",
   "status.mute_conversation": "Silenciar conversació",
   "status.open": "Ampliar aquest estat",
+  "status.pin": "Pin on profile",
   "status.reblog": "Boost",
   "status.reblogged_by": "{name} ha retootejat",
   "status.reply": "Respondre",
@@ -179,6 +180,7 @@
   "status.show_less": "Mostra menys",
   "status.show_more": "Mostra més",
   "status.unmute_conversation": "Activar conversació",
+  "status.unpin": "Unpin from profile",
   "tabs_bar.compose": "Compondre",
   "tabs_bar.federated_timeline": "Federada",
   "tabs_bar.home": "Inici",